JavaCard OS

I want a random number generation tool.

Can anybody tell me where can I download it? ?

thanks.

Snooper script to generate random number http://www.microissuer.com/index_en.html

You can try to view this Hash Calculator online tool.

maybe it's can help you.

RANDOM.ORG offers true random numbers to anyone on the Internet. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. https://www.random.org/bytes/

Random.org does indeed give you true random numbers (to the limit that anything is random anyway). However, using those numbers alone means that anyone monitoring your internet connection also has them. Use those random numbers + text you have chosen from a book in your home as input to a hash function whose output will go to where you need the random numbers. Unless they have access to your home and know which book and which text from the book, there is no way they will know the result. Or, if you are willing to spend a little, there is a usb gadget call the Infinite Noise TRNG. I believe he still sells thru Tindie and someone has made them available thru CrowdSupply as well.